Configurable switch with selectable level shifting
US7145378B2 · kind B2 · utility
1Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2001 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Oct 2, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A configurable bus switch is described where the bus switches are grouped into combinations as determined by logic inputs. NMOS transistors are the bus switches of choice, and programmable logic inputs select and enable groupings of these switches. Switch enable signals drive the NMOS transistor gates and turn on or off the groups according to the programmable logic inputs. Level shifting and undervoltage protection circuitry is described in preferred embodiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.